<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
 <head>
  <title>CSS Test: clip: Inheriting 'auto' arguments of rect()</title>
  <link rel="author" title="Boris Zbarsky" href="mailto:bzbarsky@mit.edu"/>
  <link rel="author" title="Elika J. Etemad" href="http://fantasai.inkedblade.net/"/>
  <link rel="help" href="http://www.w3.org/TR/CSS21/visufx.html#clipping"/>
  <meta name="assert" content="The 'auto' keywords in rect() resolve to a
        used (not computed) value that aligns them with the border edges."/>
  <style type="text/css">
     .container {
        position: relative;
        width: 100px; height: 100px;
        background: red; }
     #outer {
        position: absolute;
        top: 50px; left: 50px;
        clip: rect(-50px, auto, auto, -50px);
        height: 40px; width: 40px;
        border: solid 5px transparent; }
     #inner {
        position: absolute;
        top: -55px; left: -55px;
        width: 60px; height: 60px;
        border: solid 20px green;
        background: green; clip: inherit; }
  </style>

 </head>
 <body>
    <p>There must be a green box below and no red.</p>
    <div class="container">
      <div id="outer">
        <div id="inner"></div>
      </div>
    </div>
 </body>
</html>
